Lawn mower attachment



Prin 30 1935 l. E. LITTEN y LAWN MOWER ATTACHMENT Filed OCC, 30, 1933 V V V Patented Apr. 30, 1935 UNITED STATES PATENT OFFICE LAWN MOWER ATTACHMENT Application October 30, 1933, Serial No. 695,860

1 Claim.

My invention relates to a lawn mower attachment.

It is an object of this invention to provide a lawn mower having revolving cutter blades with 5 a stationary bar provided with downwardly and forwardly extending fingers to dig up weeds, especially Bermuda grass, and to guide them in position for being cut.

With the above and other objects in view, which will appear as the description proceeds, my invention consists in the construction and arrangement of parts hereinafter described and claimed.

In the accompanying drawing, which forms a part of this specification, I have illustrated a preferred embodiment of my invention, and in which:

Fig. l is a vertical cross section of a lawn mower, non-essential parts being omitted, and only a portion of the handle being shown, to which my invention is applied.

Fig. 2 is a top plan view of the stationary cutter bar.

Fig. 3 is a perspective view of the cutter bar in Fig. 2.

Fig. 4 is a section on the line 4-4 of Fig. 3 on a somewhat enlarged scale.

Referring to the drawing, I0 indicates a conventional lawn mower provided with a revolving cutter head I I carrying its series of spaced helical cutter blades I2. The mechanism for revolving the cutter head II is not shown as it forms no part of this invention. I4 indicates an improved stationary cutter bar suitably secured to supporting members I5 which may be angularly adjusted by means of a screw bolt I6.

This stationary cutter bar I4, which is the subject of this invention, consists of a fiat upper section Il, from which a series of spacedparallel downwardly and forwardly extending fingers I8 project. The extreme forward ends of the nngers I3 are pointed as at I9 and are substantially parallel to the flat upper section I'I. each pair of adjacent fingers I8 a semi-circular recess 20 is provided in a flat portion I'I of the cutter bar. A knife blade 2 I, is suitably secured Between as by welding, to the cutter bar I4 and extends along the flat upper section I'I, overlapping the rear portions of the recesses 28. The knife blade is preferably hollow ground on top 22, so as to provide a sharp edge 23, along which the cutter 5 blades I2 pass in their revolution to cut the grass. The knife blade 2| projects in front of the recesses 20, in order to minimize the friction or drag of the Bermuda grass as the cutter bar I4 passes through it.

The operation of the cutter bar is obvious. It is angularly adjusted by means of the bolt I8 to the closeness of the cut desired. 'Ihe fingers I8, with their pointed ends, will dig up weeds like Bermuda grass that grow closely to the ground and raise them up in position to slide between the fingers I8 into the recesses 2U adjacent the line of cutting formed by the knife blade 2| and the revolving cutter blades I2.

My apparatus, besides being especially adapted for digging up and cutting the Bermuda grass, acts also as a soil renovator or agitator in stirring up the surface of the ground with the result that air, light, and water more readily come in contact with the earth, thereby stimulating the growth of lawn grass and improving the appearance thereof.

Various changes may be made by those skilled in the art in the construction and arrangement of parts without departing from the spirit of my invention as claimed.

I claim:

In a lawn mower, the combination with a cutter head having a series of spaced helical cutter blades, of a stationary cutter bar having a flat section and a series of spaced parallel pointed fingers integral therewith and extending downwardly and forwardly therefrom, the eiitreme forward portions of the fingers being parallel to the flat section, said flat section being provided 0 with recesses between the base of the fingers, and a knife blade secured to the forward end of the nat section and covering the rear portion of said recesses.

IRA E. LrrrEN. 45 

